CN104929471B - Protective device with sensor - Google Patents

Abstract

A guard with a sensor that is excellent in detecting the presence of foreign objects. The protective device is installed on the sliding door (1), and detects the presence of foreign matter by contacting the conductive parts (54, 55) provided in the hollow part (52) across the space part (53). It is a housing (52a) with a roughly horseshoe-shaped cross-section. The two ends of the housing (52b, 52c) are spaced apart and connected to the installation base (11). The hollow lower conductive part (55) and the concave hollow upper conductive part (54) provided on the front end side, the shape of the space part (53) is configured such that the cross-section is approximately inverted "V" shape and the cross-section is approximately the same width The opening of the "V" shape faces the installation base (11) side and the two ends (53a, 53b) of the "V" shape are respectively provided in contact with the inner surface of the housing (52a).

Description

guard with sensor

technical field

The present invention relates to a guard with a sensor, wherein the guard with a sensor incorporates a sensor on a sliding door or a When a foreign object such as a finger is caught between an opening such as a door or a sunroof and a foreign object such as a finger, a corresponding signal is output to detect the presence of the foreign object.

Background technique

In a car such as a station wagon shown in FIG. 5 , which utilizes a slide door 1 (or back door) to open and close the opening of the vehicle body, or a car that utilizes a sunroof 2 to open and close the opening of the vehicle body as shown in FIG. In a car, guards 10, 20 with sensors are installed.

For example, a guard 10 with a sensor is mounted on the front end of the sliding door 1 , protrudes toward the front side of the vehicle body, and extends up and down as shown in FIG. 7 .

The protective device 10 with a sensor, as shown in FIGS. 8 and 9 , is installed on the front end surface of the sliding door 1 and includes a vehicle interior wall 11 a, a vehicle exterior wall 11 b and a connecting wall 11 c in a substantially U-shaped cross section. Shaped installation base 11 and the hollow part 12 integrally formed with this installation base 11, the sensor (pressure sensitive sensor) S is installed in the hollow part 12, and this sensor (pressure sensitive sensor) S is connected between the sliding door 1 and the vehicle body side opening. (There is also the case of the front door (side door)) When a foreign object such as a part of the human body (finger or limb) is caught between the doors, it is detected and a corresponding electronic signal is output (for example, refer to Patent Document 1).

In addition, at the lower part of the sensor-equipped guard 10, a guide part 13 having a C-shaped cross section is integrally formed on the vehicle interior wall 11a side of the installation base 11, and holds the wire harness W connected to the pressure sensor S. In addition, a plurality of holding lips 14, 14 are provided inside the mounting base 11, and a core material 15 having a substantially U-shaped cross section is embedded in the mounting base 11 to increase rigidity. Furthermore, a decorative lip 16 is provided on the vehicle exterior wall 11 b of the mounting base 11 .

The sensor (pressure sensitive sensor) S has two core wires (electrode wires) 31 and 32 extending in the vertical direction (longitudinal direction) embedded in a conductive rubber-like elastic body 34 provided across the space 33 , 35, and fixed in the hollow part 12, when the sliding door 1 is closed, when a foreign object is caught between the sliding door 1 and the opening on the side of the vehicle body, the hollow part 12 is partially pressed and deformed, and the rubber-like elastic body 34 , 35 are in contact so that the two core wires 31, 32 are short-circuited. And the change of this electronic signal is transmitted to the control device 40 connected with the wires 36, 36 at the lower terminal portion of the protective device 10 with the sensor, thereby detecting the presence of foreign objects, wherein the wires 36, 36 are connected with two The core wires 31, 32 are connected to each other. In addition, the conductive wires 36, 36 are covered by the wire harness W in a state covered with an insulator, but the leading ends are bare wires exposed from the covering parts 37, 37.

At the lower terminal portion of the protective device 10 with the sensor, as shown in FIG. 10 , the wire 36 overlaps with the two core wires 31, 32 drawn out in the length direction (left direction in FIG. 8 ), and connected by resistance welding or soldering ((b) in FIG. 10 ), and at the end, since the space portion 33 is exposed, after plugging with an insert 25 ((c) in FIG. 10 ) As shown in FIG. 11 , die molding is performed so that part of the connection parts M, M, the insert 25 and the wire harness W are embedded in the die molding and are not exposed.

In addition, at the upper terminal portion of the protective device 10 with the sensor, as shown in FIG. The core wires 31, 32 are overlapped together and connected by resistance welding or soldering, and after the space 33 is blocked by the insert 26, the connection part M, the insert 26 and the resistor are formed by injection molding. 39 is embedded in the injection molded interior without being exposed.

In addition, in FIG. 11 and FIG. 12, the injection molding part is shown by the dotted line.

prior art literature

patent documents

Patent Document 1: JP Patent No. 3334477.

However, as shown in FIG. 8, the cross-sectional shape of the space 33 formed between the two conductive rubber-like elastic bodies (conductive parts) 34, 35 is a substantially rectangular shape (substantially rectangular shape), and when the The movable range H of the deflected part (the conductive parts 34, 35 cannot be deflected) at the time of a foreign object is not wide, so there is only a movable range H relative to the vehicle inner side (upward direction in FIG. 8 ) and the vehicle outer side (in FIG. 8 , downward direction) about 30° (degrees) respectively, the detection in the range of about 60° (degrees) in total is possible, if it becomes a larger angle, then the two conductive parts 34, 35 do not contact each other, even if there is a Foreign matter, and sometimes the presence of foreign matter cannot be detected.

In addition, in the invention described in Patent Document 1, the cross-sectional shape of the space (void) formed between the two conductive parts is elongated and approximately rectangular, and the detection angle of foreign matter is small, and when bending deformation The range of motion is also narrow.

Contents of the invention

An object of the present invention is to provide a guard with a sensor that is excellent in detecting the presence of foreign matter.

In order to achieve the above object, the protection device (10) with sensor of the present invention has: an installation base (11), which is installed on the periphery of the opening and closing object for opening and closing the opening of the vehicle body or on the opening of the opening. On the periphery, wherein the opening and closing objects include car doors (1), sunroofs (2), etc.; the hollow part (12), which is tubular, and is integrated with the installation base (11), and separates the space part (53) Two conductive parts (54, 55) respectively embedded with core wires (31, 32) are provided; when the opening and closing object is closed, the hollow part (12) is When the foreign object sandwiched between the object and the opening is pressed and deformed, the presence of the foreign object is detected through the change of the corresponding electronic signal, and the core wire (31 , 32) are connected to the wires (36, 36) connected to the control device (40), characterized in that, the outer peripheral surface of the hollow part (52) is a shell (52a) whose section is roughly horseshoe-shaped, and the shell ( 52) both ends (52b, 52c) are separated from the left and right sides of the installation base (11), and the two conductive parts (54, 55) are included in the installation base (11) The convex hollow lower conductive part (55) arranged on the side and the concave hollow upper conductive part (54) arranged on the front end side, the space part (53) has a cross-section that is substantially inverted "V" shape and a cross-section that is roughly With the same width, the opening of the "V" shape faces the installation base (11) side and the two ends (53a, 53b) of the "V" shape are in contact with the inner surface of the housing (52a) respectively. Then set up.

In addition, here, "the change of the electronic signal" includes the change caused by the short circuit of the two core wires and the change of the capacitance.

In addition, the present invention is characterized in that the position of the lower portion (54a) of the hollow upper conductive portion (54) is closer to the installation base (11) than the position of the top (55a) of the hollow lower conductive portion (55). )side.

In addition, the present invention is characterized in that the shapes of the two conductive parts (54, 55) are arranged such that the two ends (53a) of the "V" shape in the cross-sectional shape of the space part (53) , 53b) are provided in contact with the inner surfaces of the two ends (52b, 52c) of the housing (52a), respectively.

In addition, the present invention is characterized in that the shapes of the two conductive parts (54, 55) are arranged such that the two ends (53a) of the "V" shape in the cross-sectional shape of the space part (53) , 53b), and a part of any one end (53b) is directly connected to the installation base (11).

In addition, the present invention is characterized in that both ends (52b, 52c) of the housing (52a) gradually increase in wall thickness toward the connected installation base (11) to form a gradually thicker shape.

In addition, the present invention is characterized in that cross-sectional shapes of the hollow portion (52), the two conductive portions (54, 55) provided in the hollow portion (52), and the space portion (53) are left and right Substantially symmetrical, said core wires (31, 32) lie on their axis of symmetry (T).

In addition, the present invention is characterized in that the mounting base (11), the hollow portion (52), the conductive portions (54, 55) and the core wires (31, 32) are integrally formed.

In addition, reference numerals in parentheses indicate corresponding elements or corresponding matters described in the drawings and embodiments described later.

According to the present invention, since the outer peripheral surface of the hollow part is a shell with a substantially horseshoe-shaped cross section, a concave upper hollow conductive part and a convex hollow lower conductive part are provided in the hollow part, so that the cross section of the space part between the two conductive parts The shape is a substantially inverted "V" shape in cross-section and the cross-section is approximately the same width, the opening of the "V" shape faces the installation base side, and the two ends of the "V" shape are respectively connected to the inner surface of the housing. Therefore, compared with the structure of the space part having a substantially rectangular cross-section (substantially rectangular shape) as shown in the conventional example (FIG. 8), the movable range in which the housing of the hollow part can be flexibly deformed when detecting a foreign object can be changed. As a result, it is possible to perform detection in a wide range with respect to the inside of the vehicle and the outside of the vehicle.

In addition, according to the present invention, since the lower position of the hollow upper conductive part is closer to the mounting base side than the top position of the hollow lower conductive part, the two conductive parts can easily contact even with a slight bending deformation, and the detection capability can be obtained. Strong guard with sensors.

In addition, according to the present invention, since the two ends of the "V" shape in the cross-sectional shape of the space part are provided in contact with the inner surfaces of the two ends of the housing, the cross-sectional shape of the hollow part can be miniaturized and lightened. Quantify. In addition, the amount of deflection deformation of the end portion of the housing becomes large, thereby improving detection capability accordingly.

In addition, according to the present invention, since part of any one of the two ends of the "V" shape in the cross-sectional shape of the space part is provided in direct contact with the mounting base, the amount of deflection deformation of the end of the housing It becomes even larger, thereby increasing the detection capability accordingly.

In addition, according to the present invention, with regard to the two ends of the housing, since the two ends of the housing gradually increase in wall thickness toward the attached installation base to form a gradually thicker shape, thereby preventing protruding objects such as car keys from scratching the sides of the housing. damage to both ends.

In addition, according to the present invention, since the cross-sectional shapes of the hollow part, the two conductive parts provided in the hollow part, and the space part are roughly symmetrical from left to right, and the core wire is located on the axis of symmetry, it is possible to make the protective device with the sensor The shape of the insert in which both ends of the insert are inserted into the space is simplified and mass-produced.

In addition, according to the present invention, since the mounting base, the hollow portion, the conductive portion, and the core wire are integrally formed, the guard with the sensor can be manufactured in a stable state with shortened work time.

In this way, in the protective device with a sensor, the structure of integrally molding the mounting base, the hollow portion, the conductive portion, and the core wire does not exist in the past.

Description of drawings

FIG. 1 is an enlarged cross-sectional view along line A-A of FIG. 7 showing a protective device with a sensor according to an embodiment of the present invention.

Fig. 2 is an enlarged cross-sectional view of A-A of Fig. 7 showing another protective device with a sensor according to the embodiment of the present invention.

Fig. 3 is an enlarged cross-sectional view of A-A of Fig. 7 showing still another protective device with a sensor according to the embodiment of the present invention.

Fig. 4 is an enlarged cross-sectional view along line A-A of Fig. 7 showing another protective device with a sensor according to the embodiment of the present invention.

Fig. 5 is a side view of an automobile opened and closed by a sliding door.

Fig. 6 is a perspective view of an automobile provided with a sunroof.

FIG. 7 is a side view showing the sensor-equipped guard shown in FIG. 5 .

Fig. 8 is an enlarged sectional view taken along line A-A of Fig. 7 showing a sensor-equipped protective device of a conventional example.

Fig. 9 is an enlarged sectional view taken along line B-B of Fig. 7 showing a sensor-equipped protective device of a conventional example.

Fig. 10 is a perspective view sequentially showing the steps of the lower terminal portion of the sensor-equipped guard before injection molding.

Fig. 11 is a perspective view showing a schematic structure of the lower terminal portion of the sensor-equipped guard after injection molding.

Fig. 12 is a perspective view showing a schematic structure of the upper terminal portion of the sensor-equipped guard after injection molding.

Explanation of reference signs

1 sliding door

2 skylights

10 Guards with sensors

11 Mounting the base

11a Interior wall

11b Exterior wall

11c connecting wall

12 hollow part

13 Guidance Department

14 keep lip

15 core material

16 lip for decoration

20 Guards with sensors

25, 26 Inserts

25a, 26a Insertion part

25b, 26b protrusions

31, 32 core wire

33 Department of Space

34, 35 Rubber-like elastomer

36 wires

37 Covering Department

39 resistors

39a Resistor Foot

52 Hollow part

52a housing

52b Inboard end of housing

52c Outboard end of housing

53 Department of Space

53a The interior end of the space section

53b The outer end of the space part

53bP Part of the outer end of the space part

54 Hollow upper conductive part

54a Lower part of the hollow upper conductive part

55 Hollow lower conductive part

55a Top of hollow lower conductive part

100 primary seal coats

200 secondary sealing layer

H, L movable range

M connection part

S Sensor (Pressure Sensitive Sensor)

T axis of symmetry

W harness

Detailed ways

A protective device with a sensor according to an embodiment of the present invention will be described with reference to the drawings.

The protective device 10 with a sensor according to the embodiment of the present invention is installed on the front end surface of the sliding door 1 of the automobile that uses the sliding door 1 shown in FIG. 5 to open and close the opening of the vehicle body and faces the vehicle. The front side of the body protrudes, and a sensor (pressure-sensitive sensor) S is installed, and the sensor (pressure-sensitive sensor) S is sandwiched between the sliding door 1 and the opening on the side of the vehicle body (there is also a case of a front door (side door)). In the case of a foreign object such as a part (a finger or an extremity), the entrapment is detected and a corresponding electronic signal is output. Although the parts shown in FIGS. 7 and 10 to 12 are the same as those shown in the conventional example However, FIG. 1, which shows the part where the sensor (pressure sensor) S is installed as the A-A enlarged cross section of FIG. 7, is different from the part shown in FIG. 8 in the conventional example. The same code|symbol is attached|subjected to the same part as a conventional example.

As shown in FIG. 1 , the protective device 10 with a sensor has: an installation base 11, which is directly installed on a flange (not shown) formed on the sliding door 1, and includes a vehicle interior wall 11a, a vehicle exterior The wall 11b and the connecting wall 11c have a substantially U-shaped cross section; the hollow portion 52, which is tubular, is formed integrally with the installation base 11, and is on and opposite to the front end surface of the sliding door 1 when the sliding door 1 is closed. When there is a foreign object such as a finger between the openings on the side of the vehicle body, it will elastically contact the foreign object; the sensor (pressure sensor) S, which is assembled in the hollow part 52, detects the foreign object and outputs a corresponding electronic signal; the sensor (sensor) The pressure sensor) S is configured as follows: two core wires (electrode wires) 31 and 32 extending in the vertical direction (longitudinal direction) are embedded in a conductive rubber-like elastic body 54 provided across the space portion 33 , 55, and is fixed in the hollow portion 52. The conductive rubber-like elastic bodies 54 and 55 are composed of conductive rubber mainly composed of synthetic rubber such as EPDM, and the sensor S is integrally formed with the hollow portion 52 .

A plurality of holding lips 14 , 14 are provided inside the mounting base 11 , and a core material 15 having a substantially U-shaped cross section is embedded in the mounting base 11 to increase rigidity. Furthermore, a decorative lip 16 is provided on the vehicle exterior wall 11 b of the mounting base 11 .

The hollow portion 52 is integrally formed on the connecting wall 11 c of the mounting base 11 , and the front end thereof protrudes toward the front of the vehicle.

The outer peripheral surface of the hollow portion 52 is a housing 52a having a substantially horseshoe-shaped cross section, and both ends 52b, 52c of the housing 52a are connected to the left and right (left and right in FIG. 1 ) sides of the mounting base 11 at intervals. In this embodiment, the vehicle inner side end 52b of the housing 52a is connected to the corner formed by contacting the connecting wall 11c of the mounting base 11 with the vehicle inner side wall 11a, and the vehicle outer side end 52c of the housing 52a is connected to the corner from which the mounting base 11 will be mounted. The corner portion where the connection wall 11c of the base 11 is in contact with the vehicle exterior wall 11b is connected toward the interior of the vehicle at a position slightly spaced apart (inwardly).

In addition, the two end portions 52b, 52c of these shells 52a gradually increase in thickness toward the connection wall 11c of the mounting base 11 to form a gradually thicker shape, thereby preventing protruding objects such as car keys from scratching the two end portions 52b of the shell 52a. , 52c and cause damage.

The conductive rubber-like elastic bodies 54, 55 are conductive parts, and include a convex hollow lower conductive part 55 provided on the mounting base 11 side in the hollow part 52 and a concave conductive part 55 also provided on the front end side in the hollow part 52. In the hollow upper conductive portion 54 , the core wire 31 is embedded in the center of the hollow upper conductive portion 54 , and the core wire 32 is embedded in the center of the hollow lower conductive portion 55 .

The cross-sectional shape of the space portion 53 provided between the two conductive portions 54 , 55 is determined according to the shapes of the hollow upper conductive portion 54 , the hollow lower conductive portion 55 , and the arrangement in the hollow portion 52 . Here, the cross-sectional shape of the hollow lower conductive portion 55 is substantially mountain-shaped, and the bottom side is in contact with the connection wall 11 c of the mounting base 11 . The hollow upper conductive portion 54 has a substantially crescent shape in cross-section, and both ends gradually descend from the front end of the hollow portion 52 so as to approach the connecting wall 11 c side of the mounting base 11 .

Thus, the cross-sectional shape of the space portion 53 is configured such that the cross-section has a substantially inverted "V" shape, and the cross-section has substantially the same width (set to 1.4 mm in the example of this embodiment), and the "V"-shaped The opening faces the mounting base 11 side and the V-shaped ends 53a, 53b are provided in contact with the inner surface of the case 52a. Assuming ("V"-shaped vehicle interior end 53a is provided in contact with the inner surface of the vehicle interior end 52b of the housing 52a, the distance between the "V"-shaped vehicle exterior end 53b and the vehicle exterior end 52c of the housing 52a connected inside). At this time, a part 53bP of the "V"-shaped vehicle exterior end portion 53b is provided in direct contact with the connecting wall 11c of the mounting base 11, so that the shape of the hollow lower conductive portion 55 is determined, and the inner portion of the hollow portion 52 is also determined. Configuration.

In addition, the position of the lower part 54a of the hollow upper conductive part 54 is set closer to the mounting base 11 side than the position of the top 55a of the hollow lower conductive part 55, so that both conductive parts 54, 55 will Easy access, prevent contacts from being staggered.

The cross-sectional shapes of the hollow portion 52, the two conductive portions 54, 55 provided in the hollow portion 52, and the space portion 53 are configured so that they are centered on the axis of symmetry T that is divided into left and right halves toward the vehicle interior direction and the vehicle exterior direction. On the other hand, the left and right are approximately symmetrical, and the core wires 31 and 32 are located on the axis T of symmetry.

11 and 12, in the lower terminal portion and the upper terminal portion of the protective device 10 with sensors, inserts 25, 26 are used to open the hollow space between the lower terminal portion and the upper terminal portion. The space part 53 of the part 52 is blocked.

The inserts 25 and 26 are made of polypropylene, polyethylene, polyethylene terephthalate, nylon, nylon 6, nylon 66, various thermoplastic elastomers (TPE), TPO or styrene which also belongs to olefins among TPE It is made of a flexible and non-conductive material such as TPS, and includes insertion portions 25a, 26a provided on one end side and protruding portions 25b, 26b provided on the other end side.

The insertion parts 25a, 26a are basically the same as the space part 53, and the cross-section is substantially inverted "V" shape, or a cross-sectional shape slightly larger than the space part 53, so that the space part 53 of the hollow part 52 can be inserted, so that the space can be opened. The portion 53 is blocked without gaps, so that the injection molding material can be prevented from flowing into the space portion 53 and impairing the performance of the sensor during subsequent injection molding.

In addition, the mounting base 11 and the hollow portion 52 of the protective device 10 with a sensor constitute an extruded molding part extruded from a rubbery elastic body, and the rubbery elastic body is made of, for example, synthetic rubber such as EPDM or thermoplastic elastic material such as TPO and TPS. Constructed in a single body, the upper and lower terminal parts are injection molded, and the shape is trimmed.

In addition, at the end of the protruding portion 26b of the insert 26 used in the upper terminal portion of the sensor-equipped guard 10, the main body of the resistor (electronic component) 39 is placed in a stable state, and the resistor 39 The two feet (wires) 39a, 39a overlap with the two core wires 31, 32 drawn from the hollow portion 52 toward the upper side in the length direction, respectively, and are connected by resistance welding or soldering. After the insertion part 26a of the inserting part 26a blocks the space part 53, the upper end part of the protective device 10 with the sensor is injection-molded, thereby the protruding part 26b of the insert 26, the connection part M, M, and the resistor 39 The main body and the legs 39a, 39a are embedded in the injection molded interior without being exposed.

In addition, on both sides of the protruding part 25b of the insert 25 used at the lower terminal part of the protective device 10 with a sensor, two wires 36, 36 whose front ends become bare wires exposed from the covering part 37 and the two wires 36 from the hollow part. 52, the two core wires 31 and 32 drawn out toward the lower side in the longitudinal direction are overlapped together and connected by resistance welding or soldering. The lower end of the sensor-equipped guard 10 is injection-molded so that the protruding portion 25b of the insert 25 and the connection portions M, M are embedded in the injection-molded interior without being exposed. The two wires 36, 36 are wrapped into one by the wire harness W in a state covered by an insulator, and the outer peripheral surface is covered with a sheath, but at the end of the wire harness W, the covering part 37, 37 is drawn out, and the wires 36, 36 It is further pulled out from the covering parts 37, 37 and becomes an exposed state. The wire harness W is connected to the control device 40 , and the control device 40 detects the presence of foreign objects.

According to such a protective device 10 with a sensor, the outer peripheral surface of the hollow portion 52 is a casing 52a having a substantially horseshoe-shaped cross section, and the concave upper hollow conductive portion 54 and the convex hollow lower conductive portion 55 are provided so that the two conductive portions are electrically conductive. The cross-sectional shape of the space portion 53 between the portions 55 and 56 is a substantially inverted "V" shape in cross-section with substantially the same width. The two ends 53a, 53b of the housing 52a are provided in contact with the inner surface of the housing 52a respectively, so compared with the structure of the space portion 33 having a substantially rectangular cross-section (substantially rectangular) as shown in the conventional example (FIG. 8), it is possible to Enlarging the movable range L in which the shell 52a of the hollow portion 52 can be flexibly deformed when detecting a foreign object refers to making the position of the surface of the shell 52a at the front end of the hollow portion 52 intersecting the axis of symmetry T and the vehicle outer side of the shell 52a The position where the end portion 52c is connected to the mounting base 11 hangs down with respect to the axis of symmetry T, and the distance obtained by connecting the positions of the perpendicular line thus formed can be increased (movable range L>movable range H shown in the conventional example) .

As a result, as shown in FIG. 1 , it is possible to rotate about 60° (degrees) and a total of about 120° (degrees) with respect to the inside of the vehicle (right direction in FIG. 1 ) and the outside of the vehicle (left direction in FIG. 1 ). detection on such a large scale.

In addition, since the cross-sectional shape of the hollow portion 52, the two conductive portions 54, 55, and the space portion 53 is configured so that the left and right sides are approximately divided by the symmetry axis T that is divided into left and right halves toward the vehicle interior direction and the vehicle exterior direction. Symmetrical, the core wires 31, 32 are located on the axis of symmetry T, so the shapes of the inserts 25, 26 inserted into the space 53 at the two end portions of the protective device 10 with sensors can be simplified to realize mass production .

In addition, in the present embodiment, in the cross-sectional shape of the space portion 53, a part 53bP of the “V”-shaped vehicle outer end portion 53b is provided in direct contact with the connecting wall 11c of the mounting base 11, and the vehicle body of the housing 52a The amount of deflection and deformation of the outer end 52c becomes larger, thereby improving the detection capability accordingly. However, as shown in FIG. The connection wall 11c side of the installation base 11 is not directly in contact with even a part.

In addition, in the present embodiment, the both end portions 52b, 52c of the housing 52a constituting the hollow portion 52 have gradually increased thickness toward the connecting wall 11c of the mounting base 11 to form a gradually thicker shape. However, as shown in FIG. 3 , It is also possible to make the wall thickness approximately the same to improve detection capability.

In addition, in the present embodiment, in the cross-sectional shape of the space portion 53, both end portions 53a, 53b of the “V” shape are in contact with the inner surfaces of both end portions 52b, 52c of the housing 52a constituting the hollow portion 52, respectively. However, as shown in FIG. 4 , it may be provided in contact with the inner surfaces of the parts of the housing 52a spaced apart from the both ends 52b and 52c of the housing 52a.

Compared with the structure shown in FIG. 4 , the structure shown in FIG. 1 can realize the miniaturization and weight reduction of the cross-sectional shape of the hollow portion 52 .

In addition, in this embodiment, the mounting base 11, the hollow portion 52, and the sensor S are integrally formed, but the following structure may also be used: each part is formed separately, for example, the mounting base 11 and the hollow portion 52 are bonded together by an adhesive or adhesive. The adhesive tape is fixed, and the sensor S is inserted into the hollow portion 52 to be integrated. Alternatively, any two of the mounting base 11 , the hollow portion 52 , and the sensor S may be integrally formed, and the remaining one may be separately formed.

In addition, in this embodiment, the installation base 11 is provided with a plurality of holding lips 14, 14 inside, and the core material 15 having a substantially U-shaped cross section is embedded therein. However, even this type of installation base 11 is One holding lip 14 may be used, or the core material 15 may not be embedded. In addition, it is not limited to such a type, and as long as it is a part for fixing the hollow part 52 and the sensor S, it may be configured as the mounting base 11 , other than the structure having a substantially U-shaped cross section as in the present embodiment. is also included. Therefore, not only holding or fitting, but also fixing with an adhesive tape is possible, and various methods can be selected.

In addition, in the embodiment of the present invention, in an automobile in which the sliding door 1 moves in the front-rear direction, the guard device 10 with the sensor is attached to the sliding door 1 side as an example. A guard 10 with a sensor is attached to the opening to detect foreign matter between the sliding door 1 and the opening.

In addition, the protective device 10 with sensors can also be adapted for rear doors or sunroofs 2 ( FIG. 6 ).

Claims (10)

1. A protective device with a sensor, comprising: an installation base installed on the periphery of an opening and closing object for opening and closing the opening of the vehicle body or on the periphery of the opening, wherein the opening and closing object includes Doors and sunroofs of automobiles; hollow parts, which are tubular and integrated with the installation base, and are provided with two conductive parts respectively embedded with core wires across the space part; when the opening and closing object is closed When the hollow part is pressed and deformed by a foreign object sandwiched between the opening and closing object and the opening, the presence of the foreign object is detected through a change in the electronic signal corresponding to this, and the terminal part along the The core wire drawn out along the length direction is connected to the wire connected to the control device, It is characterized in that, The outer peripheral surface of the hollow portion is a casing having a substantially horseshoe-shaped cross section, and both ends of the casing are connected to the left and right sides of the mounting base at intervals, The two conductive parts include a convex hollow lower conductive part set on the side of the installation base and a concave hollow upper conductive part set on the front end side, and the space part has a substantially inverted "V" shape in cross section And the cross-section has approximately the same width, the opening of the "V" shape faces the installation base side, and the two ends of the "V" shape are respectively connected to the inner surfaces of the two ends of the housing. . 2. The protective device with a sensor according to claim 1, wherein the lower portion of the hollow upper conductive portion is closer to the installation base than the top portion of the hollow lower conductive portion. 3. The protective device with sensors according to claim 1, characterized in that, the shapes of the two conductive parts are configured such that the two sides of the "V" shape in the cross-sectional shape of the space part Part of any one of the end portions is provided in direct contact with the installation base. 4. The protective device with sensors according to claim 2, characterized in that, the shapes of the two conductive parts are configured such that the two sides of the "V" shape in the cross-sectional shape of the space part Part of any one of the end portions is provided in direct contact with the installation base. 5. The protective device with sensors according to any one of claims 1 to 4, characterized in that, the two ends of the housing gradually increase in wall thickness toward the connected installation base to form a gradually thicker shape . 6. The protective device with a sensor according to any one of claims 1 to 4, characterized in that the hollow part, the two conductive parts provided in the hollow part and the space part The cross-sectional shape is roughly symmetrical left and right, and the core wire is located on the axis of symmetry. 7. The protective device with a sensor according to claim 5, wherein the cross-sectional shape of the hollow part, the two conductive parts provided in the hollow part, and the space part is approximately symmetrical from left to right , the core wire is located on its axis of symmetry. 8. The protective device with sensors according to any one of claims 1-4, 7, characterized in that, the installation base, the hollow part, the conductive part and the core wire are integrally formed . 9 . The protective device with sensors according to claim 5 , wherein the mounting base, the hollow portion, the conductive portion and the core wire are integrally formed. 10 . The protective device with sensors according to claim 6 , wherein the mounting base, the hollow portion, the conductive portion and the core wire are integrally formed. 11 .